July 4, 2018 Subject:
Good start - but stopping later on
Now getting the chance to try your proposal. Unfortunately, both WEBM and also MP4 downloaded files, played with VLC, are acting equal: They stop at around 3:42, freezed image until 28:43, however audio is going on (but starting from 00:00).
This is independent which WEBM is used (direct download or from zipped "all files").